In which of the following reaction product does not contian 'peroxoy' linakge?

Options

A. `2OFoverset("Dimerisation")to`
B. `H_(4)P_(2)O_(8) overset(+H_(2)O) to`
C. `2Na underset(Delta)overset("excess "O_(2))to`
D. none of these

Explanation

To determine which of the given reactions produces a product that does not contain a 'peroxy' linkage, we need to analyze each reaction and its product. A peroxy linkage is characterized by an O-O bond where the atoms attached to the oxygen atoms are less electronegative than oxygen itself.

### Step-by-Step Solution:

1. **Identify the Products of Each Reaction:**
- **Reaction 1:** Dimerization of OF (Oxygen difluoride)
- Product: O2F2 (Dioxygen difluoride)
- **Reaction 2:** H4P2O8 + H2O
- Product: 2 H3PO4 + 2 H2O2 (Phosphoric acid and Hydrogen peroxide)
- **Reaction 3:** 2 Na + O2 (excess)
- Product: Na2O2 (Sodium peroxide)

2. **Analyze Each Product for Peroxy Linkage:**
- **Product 1: O2F2**
- Structure: F-O-O-F
- Analysis: Fluorine (F) is more electronegative than oxygen (O), hence this does not qualify as a peroxy linkage.
- **Product 2: H2O2**
- Structure: H-O-O-H
- Analysis: Hydrogen (H) is less electronegative than oxygen (O), hence this qualifies as a peroxy linkage.
- **Product 3: Na2O2**
- Structure: Na-O-O-Na
- Analysis: Sodium (Na) is less electronegative than oxygen (O), hence this qualifies as a peroxy linkage.

3. **Conclusion:**
- The product that does not contain a peroxy linkage is **O2F2** (from Reaction 1).

### Final Answer:
The product that does not contain a peroxy linkage is **Option 1: O2F2**.